Subject: Re: Extension of fsync_range() to permit forcing disk cache flushing
To: der Mouse <mouse@rodents.montreal.qc.ca>
From: Charles M. Hannum <abuse@spamalicious.com>
List: tech-kern
Date: 12/18/2004 06:47:38
On Saturday 18 December 2004 05:56, der Mouse wrote:
> Actually, I'm fairly sure I've heard of at least one disk drive that
> uses the spindle motor as a generator to power the electronics long
> enough to avoid problems like partially written sectors on power fail.
Drive manufacturers experimented with that for a while, but it never worked
reliably, and it's not implemented at all in any current drives. (It can't
be, for various reasons.)